Transactions of Materials Processing (소성∙가공)

The Korean Society for Technology of Plasticity and materials processing (한국소성∙가공학회)
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Numerical Simulation of Thin Sheet Metal Forming Process using Electromagnetic Force

전자기력을 이용한 박판 성형공정의 해석적 연구

  • 서영호 (부산대학교 항공우주공학과 대학원) ;
  • 허성찬 (부산대학교 항공우주공학과 대학원) ;
  • 구태완 (부산대학교 항공우주공학과) ;
  • 송우진 (부산대학교 산학협력단) ;
  • 강범수 (부산대학교 항공우주공학과) ;
  • 김정 (부산대학교 항공우주공학과)
  • Published : 2008.02.01
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Abstract

Electromagnetic Forming (EMF) technology such as magnetic pulse forming, which is one of the high velocity forming methods, has been used for the joining and forming process in various industry fields. This method could be derived a series of deformation of sheet metal by using a strong magnetic field. In this study, numerical approach by finite element simulation of the electromagnetic forming process was presented. A transient electromagnetic finite element code was used to obtain the numerical model of the time-varying currents that are discharged through the coil in order to obtain the transient magnetic forces. Also, the body forces generated in electromagnetic field were used as the loading condition to analyze deformation of thin sheet metal workpiece using explicit dynamic finite element code. In this study, after finite element analysis for thin sheet metal forming process with free surface configuration was performed, analytical approach for a dimpled shape by using EMF was carried out. Furthermore, the simulated results of the dimpled shape by EMF were compared with that by a conventional solid tool in view of the deformed shape. From the results of finite element analysis, it is confirmed that the EMF process could be applied to thin sheet metal forming.

Keywords

References

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  1. Development of Sheet Metal Forming Apparatus Using Electromagnetic Lorentz Force vol.19, pp.1, 2010, https://doi.org/10.5228/KSPP.2010.19.1.038